CVE-2025-21680

Advisory lineage Upstream: 0 Downstream: 57
Modified
Published: 31 Jan 2025, 11:25
Last modified:11 May 2026, 21:04

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability -0.02%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

31 Jan 2025, 11:25
Published
Vulnerability first disclosed
11 May 2026, 21:04
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: pktgen: Avoid out-of-bounds access in get_imix_entries Passing a sufficient amount of imix entries leads to invalid access to the pkt_dev->imix_entries array because of the incorrect boundary check. UBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24 index 20 is out of range for type 'imix_pkt [20]' CPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl lib/dump_stack.c:117 __ubsan_handle_out_of_bounds lib/ubsan.c:429 get_imix_entries net/core/pktgen.c:874 pktgen_if_write net/core/pktgen.c:1063 pde_write fs/proc/inode.c:334 proc_reg_write fs/proc/inode.c:346 vfs_write fs/read_write.c:593 ksys_write fs/read_write.c:644 do_syscall_64 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130 Found by Linux Verification Center (linuxtesting.org) with SVACE. [ fp: allow to fill the array completely; minor changelog cleanup ]

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Techniques & Countermeasures

  • CWE-129•Improper Validation of Array Index

    The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

Affected Systems

  • linux•linux

    ≥ 52a62f8603f97e720882c8f5aff2767ac6a11d5f, < 3450092cc2d1c311c5ea92a2486daa2a33520ea5 | ≥ 52a62f8603f97e720882c8f5aff2767ac6a11d5f, < e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486 | ≥ 52a62f8603f97e720882c8f5aff2767ac6a11d5f, < 7cde21f52042aa2e29a654458166b873d2ae66b3 | ≥ 52a62f8603f97e720882c8f5aff2767ac6a11d5f, < 1a9b65c672ca9dc4ba52ca2fd54329db9580ce29 | ≥ 52a62f8603f97e720882c8f5aff2767ac6a11d5f, < 76201b5979768500bca362871db66d77cb4c225e | 5.15

  • linux•linux_kernel

    ≥ 5.15, < 5.15.177 | ≥ 5.16, < 6.1.127 | ≥ 6.2, < 6.6.74 | ≥ 6.7, < 6.12.11 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3 | 6.13:rc4 | 6.13:rc5 | 6.13:rc6 | 6.13:rc7

References (6)